940806387 has 8 divisors (see below), whose sum is σ = 1393787280. Its totient is φ = 627204240.

The previous prime is 940806353. The next prime is 940806397. The reversal of 940806387 is 783608049.

It is a happy number.

940806387 is a `hidden beast` number, since 9 + 4 + 0 + 8 + 0 + 638 + 7 = 666.

It is not a de Polignac number, because 940806387 - 2¹⁴ = 940790003 is a prime.

It is not an unprimeable number, because it can be changed into a prime (940806397) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17422314 + ... + 17422367.

It is an arithmetic number, because the mean of its divisors is an integer number (174223410).

Almost surely, 2^940806387 is an apocalyptic number.

940806387 is a deficient number, since it is larger than the sum of its proper divisors (452980893).

940806387 is a wasteful number, since it uses less digits than its factorization.

940806387 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34844690 (or 34844684 counting only the distinct ones).

The product of its (nonzero) digits is 290304, while the sum is 45.

The square root of 940806387 is about 30672.5673363023. The cubic root of 940806387 is about 979.8661440807.

The spelling of 940806387 in words is "nine hundred forty million, eight hundred six thousand, three hundred eighty-seven".